Beta-delayed two-neutron emission from <sup>30,31,32</sup>Na期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Beta-delayed two-neutron emission from ^30,31,32Na

Authors:	C. Detraz M. Epherre D. Guillemaud P.G. Hansen B. Jonson R. Klapisch M. Langevin S. Mattsson F. Naulin G. Nyman A.M. Poskanzer H.L. Ravn M. de Saint-Simon K. Takahashi C. Thibault F. Touchard

Affiliation:	1. The ISOLDE Collaboration, CERN, CH-1211 Geneva, Switzerland;2. Laboratoire René Bernas, CSNSM, F-91406 Orsay, France;3. Institut de Physique Nucléaire, F-91406 Orsay, France;4. Institut für Kernphysik, Technische Hochschule, D-6100 Darmstadt, Fed. Rep. Germany

Abstract:	Beta-delayed two-neutron emission from mass-separated samples of short-lived sodium isotopes has been detected both by n-n time correlations with a 4π neutron counter and by γ-spectroscopic identification of daughter products with mass A ? 2. The observed cases (intensities per beta decay) are $^{30} Na (1.2 ± 0.2%),^{31} Na (0.70 ± 0.25%) and^{32} Na (5.1 ± 1.8%)$ . The results are in good agreement with a simple model of beta-particle emission.

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